WC1-358-0337, 2 1/8" Long Rib Neck Bolt (3/8-24 Thread)As an official Firestone Airide distributor, Next Day Fittings can offer our customers the best pricing and factory lead times. Our trained and knowledgeable staff is always ready to help with any aspect of the Firestone Airide product purchasing process. Whether you need assistance from a customer service agent or a product engineering expert, Next Day Fittings is committed to being your Firestone Airide Air Spring partner every step of the way.Firestone Airide Airstrokeâ„¢ actuators are playing a crucial role in modern machine design as pneumatic actuators in industrial applications. Due to their durability, ability to withstand abrasive environments, and exceptional performance, Airstrokeâ„¢ actuators are becoming a popular replacement for traditional pneumatic and hydraulic cylinders.